Question

In y=Asin(wt-kx), x is the displacement and t is the time taken, then the dimensional formula of w is

Answer 1

Explanation:

In the given equation y=Asin(ωt−kx)

Since, trigonometric function is a dimensionless quantity. So, (ωt−kx)is also dimensionless quantity.

So,

(ωt−kx)=1

ωt=1

[ω]= 1/ [T ] =[T]−1

kx=1

[k]= 1/[L] =[L] −1